The present invention relates to a detection module (22) for the detection of ionizing radiation emitted by a radiation source (20) comprising a scintillator element (24) for emitting scintillation photons in response to incident ionizing radiation, a first photosensitive element (32a) optically coupled to the scintillator element (24) for capturing scintillation photons (30) and a flexible substrate (34) for supporting the first photosensitive element (32a). The present invention also relates to an imaging device (10) that comprises such a detection module (22).